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ZJC2103-16ATPER

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ZJW Analog To Digital Converters (ADCs), QFN-20(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ZJC2103-16ATPER

ZJW · Analog To Digital Converters (ADCs) · QFN-20(4x4)

ZJC2103-16ATPER from ZJW, in a QFN-20(4x4). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 VDD power_in Power supply, nominally 2.3 V to 5.5 V with an external reference, decoupled with 10 µF and 100 nF; minimum 3.0 V for internal 2.5 V reference and 4.5 V for internal 4.096 V reference.
2 REF bidirectional External reference input or internal reference buffer output (selectable 2.5 V or 4.096 V; buffered REFIN up to 4.096 V maximum), needs a 10 µF decoupling capacitor close to the pin.
3 REFIN bidirectional Internal reference output (unbuffered bandgap, needs 0.1 µF decoupling) or external reference buffer input accepting 0.5 V to 4.096 V.
4 GND power_in Power supply ground.
5 GND power_in Power supply ground.
6 IN4 input Analog input channel 4.
7 IN5 input Analog input channel 5.
8 IN6 input Analog input channel 6.
9 IN7 input Analog input channel 7.
10 COM input Common channel input; all input channels can be referenced to a common-mode point of 0 V or VREF/2.
11 CNV input Convert input; the rising edge initiates conversion, and if CNV is high during conversion the busy indicator is enabled.
12 DIN input Serial data input used for writing the 14-bit configuration register.
13 SCK input Serial clock input that clocks data out on SDO and in on DIN, MSB first.
14 SDO output Serial data output of conversion codes, straight binary in unipolar modes and twos complement in bipolar modes.
15 VIO power_in Digital interface power supply, nominally at the same supply as the host interface (1.8 V/2.5 V/3 V/5 V logic).
16 IN0 input Analog input channel 0.
17 IN1 input Analog input channel 1.
18 IN2 input Analog input channel 2.
19 IN3 input Analog input channel 3.
20 VDD power_in Power supply, nominally 2.3 V to 5.5 V with an external reference, decoupled with 10 µF and 100 nF; minimum 3.0 V for internal 2.5 V reference and 4.5 V for internal 4.096 V reference.
21 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer ZJW
Package QFN-20(4x4)
Category ADC/DAC/Data Conversion
Pins 21

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply Voltage Absolute Max (VDD, REF, VIO to GND) -0.3 6 V VDD, REF, VIO to GND 6
Storage Temperature Range -65 150 °C 6
Junction Temperature 150 °C 6
Lead Temperature 300 °C Soldering, 10 seconds 6
Maximum Reflow Temperature 260 °C 6
ESD HBM 1.5 kV Human Body Model 6
ESD CDM 1 kV Charged Device Model 6
Thermal Resistance Junction-Ambient θJA 51 °C/W QFN-20 6
Thermal Resistance Junction-Case θJC 27 °C/W QFN-20 6
Resolution 16 bits 7
No Missing Codes 16 bits 7
Throughput, Full Bandwidth 0 250 kSPS VDD = 4.5 V to 5.5 V 7
Throughput, Full Bandwidth 0 200 kSPS VDD = 2.3 V to 4.5 V 7
Integral Nonlinear Error INL -2 1.25 2 LSB 7
Differential Nonlinear Error DNL -0.9 0.45 0.9 LSB 7
Gain Error GE -10 2 10 LSB Single-ended 7
Zero Error ZE -8 2 8 LSB Single-ended 7
Dynamic Range DR 92 93 dB VREF = 5 V 8
SNR SNR 91 92.5 dB fIN = 1 kHz, VREF = 5 V 8
SNR SNR 89 91 dB fIN = 1 kHz, VREF = 4.096 V, internal ref 8
SNR SNR 85.3 87.3 dB fIN = 1 kHz, VREF = 2.5 V, internal ref 8
SINAD SINAD 90.9 92.4 dB fIN = 1 kHz, VREF = 5 V 8
SINAD SINAD 88.8 90.8 dB fIN = 1 kHz, VREF = 4.096 V, internal ref 8
SINAD SINAD 85.2 87.2 dB fIN = 1 kHz, VREF = 2.5 V, internal ref 8
REF Output Voltage 4.092 4.096 4.1 V 4.096 V, @ 25 °C 8
REF Output Voltage 2.495 2.5 2.505 V 2.5 V, @ 25 °C 8
Reference Temperature Drift Tc 6 10 ppm/°C -40 °C to +85 °C 8
Input Current IIL -1 1 µA 9
Logic Low Voltage VOL 0.4 V IOUT = +200 µA 9
VDD Specified performance VDD 4.5 5.5 V Specified performance 9
VDD Operating Range VDD 2.3 5.5 V 9
VIO Specified performance VIO 1.8 V Specified performance 9
Power Consumption 8.5 9.5 mW VDD = 5 V, 250 kSPS 9
Power Consumption 13 15 mW VDD = 5 V, 250 kSPS, internal ref 9
Specified Performance Temperature Range -40 85 °C TMIN to TMAX 9

CAD (KiCad official)

  • Symbol: ZJC2103-16ATPER
  • Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
  • 3D model: QFN-20(4x4) (KiCad packages3D, STEP)
  • 3D model files: zjc2103-16atper-etched.step / zjc2103-16atper-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); zjc2103-16atper.step / zjc2103-16atper.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: ZJW datasheet (36 pp, sha256 075123bbcdfabf35, retrieved 2026-10-26, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF